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Task: Summarize the main points from a given document.

https://en.wikipedia.org/wiki/History_of_China

Answer:
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The history of China dates back over 4,000 years. It saw the rise of major imperial dynasties, such as the Qin and Han, who united various regional states and established centralized rule over vast swathes of land. It experienced periods of both growth and turbulent change, witnessing several invasions, numerous rebellions and vast economic and cultural transformation. China's transition to Communism, foreign occupation, and the Cold War have also shaped its history. Today, China is one of the world's most influential countries, with a thriving economy and significant power in international affairs.